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| author | bas-vk <bas-vk@users.noreply.github.com> | 2016-12-11 06:54:58 +0800 |
|---|---|---|
| committer | Felix Lange <fjl@users.noreply.github.com> | 2016-12-11 06:54:58 +0800 |
| commit | 4e36b1e3dadda62a53e309a1b6cf7aed97ea7a3a (patch) | |
| tree | cf54f3d14e4ac9f177b6951f92f898d8c7c9a744 /eth/protocol.go | |
| parent | 0fe35b907addf1c066cb4d7c717bb23f9f2e7be4 (diff) | |
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core: bugfix state change race condition in txpool (#3412)
The transaction pool keeps track of the current nonce in its local pendingState. When a
new block comes in the pendingState is reset. During the reset it fetches multiple times
the current state through the use of the currentState callback. When a second block comes
in during the reset its possible that the state changes during the reset. If that block
holds transactions that are currently in the pool the local pendingState that is used to
determine nonces can get out of sync.
Diffstat (limited to 'eth/protocol.go')
| -rw-r--r-- | eth/protocol.go | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/eth/protocol.go b/eth/protocol.go index 3f65c204b..7d22b33de 100644 --- a/eth/protocol.go +++ b/eth/protocol.go @@ -98,11 +98,11 @@ var errorToString = map[int]string{ type txPool interface { // AddBatch should add the given transactions to the pool. - AddBatch([]*types.Transaction) + AddBatch([]*types.Transaction) error // Pending should return pending transactions. // The slice should be modifiable by the caller. - Pending() map[common.Address]types.Transactions + Pending() (map[common.Address]types.Transactions, error) } // statusData is the network packet for the status message. |